Actually, I found the exploration of the True Runes intentions to be rather lacking. It would have been nicer if the hero had a mental debate with the rune or something of that kind. Instead, we see that the rune of punishment just likes to gobble peoples lives and other than the fact that the 108 stars of destiny were gathered together, there was no explanation why it changed from punishment to atonement. How does gathering the stars of destiny effect the Runes determination of who should live or die? I mean, if it was simply based on the idea that the 108 stars cared for the Tenkai star and thus his life was spared, then any joe schmoe can gather a bunch of friends to prove he should live.
But more importantly, the game Suikoden is based the legend of the 108 stars of destiny. Thus, the game should be about the 108 stars and simply use the True Runes as a plot device or a motivation for the wars. Instead, it seems that any person lucky or cursed enough to stumble upon a true rune should lead whatever army in whatever conflict. The games need to go back to focusing on the Stars of Destiny, not the True Runes.
"It doesn't matter if the glass is half empty or half full...what matters is the glass."